ASTEROIDAL OCCULTATION - REPORT FORM

    +------------------------------+  +------------------------------+
    |            EAON              |  |            IOTA/ES           |
    |                              |  |   INTERNATIONAL OCCULTATION  |
    |     EUROPEAN  ASTEROIDAL     |  |      TIMING  ASSOCIATION     |
    |     OCCULTATION NETWORK      |  |       EUROPEAN SECTION       |
    +------------------------------+  +------------------------------+

1 DATE: 8 May 2020                   STAR: TYC 300-00538-1  (8.8 mag)
  ASTEROID: 82043 2000 SN238               No: 

2 OBSERVER: Name: Marek Zawilski            Abbr:
            Address: 91-473 Lodz, Poland

3 OBSERVING STATION: Nearest cities: Lodz and Poddebice
  Station: Tobolice
  Latitude:  51d 54' 48.3" N
  Longitude: 19d 03' 22.4" E
  Altitude:  140m MSL
  Datum (WGS84 preferred): WGS84

  Single, OR Double or Multiple station (Specify observer's name):
  SINGLE

                         +----------------------------------+
4 TIMING OF EVENTS:      |                                  |
                         |  OCCULTATION RECORDED: NEGATIVE  |
                         |                                  |
                         +----------------------------------+
  Type of event
  Start observation   Interrupt-start   Disappearance   Blink   Flash
  End observation     Jnterrupt-end     Reappearance    Other (specify)

                                                  Comments
  Event   Time (UT)    P.E.   Acc.   
  Code   HH:MM:SS.ss   S.ss   S.ss
  
    S  - 22:31:01    - N/A  - 1    :
    D  -      -                    :  short breaks in recording (see below)
    R  -   -                       :   
    E  - 23:33:02    - N/A  - 1    :
  
                          Duration : no
                         Mid-event : 
               Predicted mid-event : 8 May; 22:32:07 UT  +/- 9 sec

  Was your reaction time applied to the above timings? N/A

5 TELESCOPE: Type: Cassegrain       Aperture: 203mm    Magnification: ---
             Mount: Equatorial     Motor drive: YES   Foc.length: 2032mm reduced to 1016mm

6 TIMING & RECORDING:
  Time source: IOTA VTI inserter
  Sensor: camera Watec 902H
  Recording: VirtualDub2 software

7 OBSERVING CONDITIONS:
  Atmospheric transparency: very good   Wind: none            Temperature: +10 deg C
  Star image stability: good       Minor planet visible: no 

8 ADDITIONAL COMMENTS:
 
  The light curve analyze using Tangra software and a careful inspection of the screen replay showed no remarkable drop of star brightness caused by the asteroid. 
  However, short breaks (of 0.4-0.6s) in recording took place.
  Despite this, I can evaluate the observations as negative, anyway no occultation longer than 0.6s has been recorded.

  Predicted max 1.0 sec duration with 10.5 mag drop.
  Event probability at site : 3.7%
  Distance from center line : 32.9 km in S direction
  Local * conditions (Alt,Az): 36°, @207°